#include<stdio.h>
struct Student
{
    int num;
   float score;
   struct Student *next;
   
};
int main()
{
    struct Student a,b,c,*head,*p;
    a.num=10101;a.score=89.5;
    b.num=10103;b.score=90;
    c.num=10107;c.score=85;
    head=&a;
    a.next=&b;
    b.next=&c;
    c.next=NULL;
    p=head;
    do
    {
        printf("%ld %5.1f\n",p->num,p->score);
        p=p->next;
    } while (p!=NULL);
    return 0;
    
}